Stanley Door Closers Flashcards
What does spring power mean in relation to the movement of the door?
More spring power equals more force.
What is the maximum spring force on the D4550?
22 lbs
Which is more likely loose adjustment in the field, a telescoping arm or a threaded arm?
telescoping. The standard arm is secured by a nut. Telescoping is securing by friction.
What makes it harder to cut the O-ring in a Stanley Closer?
Two things: the v slot valve, and it’s non critical, which means if you back it all the way out, it won’t crush the ring.
What is general speed?
The speed at which the door closes from fully open to within 15 degrees of latching. It’s adjustable via an allen valve on the closer body.
What is latching speed?
The last 15 percent of the closing cycle. It can be adjusted via allen valve on closer body.
Where are the latching and closing speed valves?
On the end of the closer.
Where is the spring power adjustment?
It’s a nut on the tube end of the D4550/D3550.
What is the maximum spring power of the D3550?
16 lbs. It’s the same as the LCN 4040.
What is delayed action?
It slows the closing of door form 180 to 70 degrees?
Are the D4550/D3550 handed?
No. They are reversible.
How is the cover secured on the D3550/D4550?
There are four tabs on the cover that fit over corresponding tabs on the closer body.
Why use a closer?
It ensures that the door is closed. This has two main functions: Fire control and security.
What is back check?
Hydraulic cushion of the door’s opening swing.
